Beveling-machine.



A. H. PEENZEL.

BEVELING MACHINE.

APPLICATION FILED JAN.11, 2913.

1,128,359. Patented Feb.16, 1915.

2 SHEETS-SHEET 1.

A. H. PRENZBL.

BEVBLING MACHINE.

APPLICATION FILED JAN.11,19131 1,128,359. Patented Feb. 16, 1915.

2 SHEETS-SHEET 21 all,

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UNITED STATES PATENT OFFTCE.

ADAM H. PBENZEL, 0F HALIFAX, PENNSYLVANIA, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATEBSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

BEVELIN G-MACHIN E.

Specification of Letters Patent.

Patented Feb. 16, 1915.

Application filed January 11, 1913. Serial No. 741,512.

To all whom it may concern Be it known that I, ADAM H. PRENZEL, a citizen of the United States, residing at Halifax, in the county of Dauphin and State of Pennsylvania, have invented certain Improvements in BevelingMachines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

My invention relates to devices for beveling the edges of soles for use in the manufacture of boots and shoes and particularly to machines for beveling soles at the edges of the heel seat in making shoes by the process disclosed in my prior Patent No. 960.234, granted May 31, 1910. It should he understood however, that the invention is not limited in its application to these specific uses, but is broadly applicable to various other uses for which devices of a similar character are employed.

One object of this invention is to provide improvements in the type of machine disclosed in a prior patent granted to me July 26, 1910, No. 965,744. In the use of the prior machine both the guiding and the feeding of the work were accomplished manually and this required close attention and considerable personal effort on the part of the operator and necessitated the use of both hands for manipulating the work during the beveling operation. By the present invention I provide automatic means to feed the work and the operator is required simply to turnand guide the work in its advance, an operation which can' be accomplished easily with one hand while the other may he engaged in picking up a new blank or in disposing of one previously operated upon. This provision results in much eater ease and rapidity of operation, and 1n the combination described and claimed constitutes an important feature of this invention.

An important object of the invention also is to provide in a machine of the type referred to a device for feeding forward the work which shall be so arran ed with reference to the cutter as to er orm also the important function of gaging the depth of the cut, with provision for adjusting such device for varying thedepth of thecut while maintaining its operative relation to the work as a feeding member.

Another object is to facilitate the feeding of the work by providing, preferably in combination with a rotary feeding member, a rotary work supporting member which shall cooperate with the feeding member to advance the work, without the friction between the work and the support which would be incident to the clamping pressure of the feeding member if the support were fixed.

A further feature is an arrangement of the feeding device whereby it may be readily moved aside to afford access to the cutter.

Other objects and features will appear from the following detailed description, read in connection with the accompanying drawings, in which Figure 1 is a side elevation of a beveling machine in which my invention is embodied. Fig. 2 is a perspective view of the upper portion of the machine; Fig. 3 is a vertical section showing the work support, cutter and feeding and gaging device in their operative relation to the work; and Fig. 4 shows the rear portion of a sole used in making a shoe accordin to my process above referred to, after havlng been beveled at the edges of the heel seat by the use of this machine.

Mounted in the frame 2 is a main driving shaft 4 which is provided with the usual driving and idle pulleys 6 and 8. A belt shifter 10 is employed as usual for starting and stopping the machine. Rotatably mounted in the upper portion of the frame is the cutter shaft 12 which is driven from shaft 4 by means of the belt 14. The shaft 12 has detachably secured upon one end by means of a screw 16 a rotary cutter 18 which in the form shown has a peripheral working surface parallel to its axis. The frame is provided with a conduit 20 shaped so as to form a hood over the cutter and adapted for connection with a suction fan or similar device for removing chips and dust.

Arranged beneath the cutter wheel is a work support which comprises the mam bracket 22 pivoted to the frame at 24. The.

bracket Q2 carries a work supporting table 26 adjustably pivoted thereto at 30 and provided with a. freely rotatable top 28. The

table or support 26 is adjustable about its pivot 30 so as to vary the an le of its work supporting surface with re erence to the cutter wheel and thereby vary and determine the angle at which the work is to be beveled. The screw 32 serves to clamp the support 26 in adjusted position with reference to the main support or bracket 22.

The bracket 22 is adjustable by means of the screw 34 so as to vary the normal distance of the work support below the cutter. The screw 34 isthreaded intothe frame and passes through a slot 36 at the lower end of the bracket and thereby limits the extent of upward movement of the support while permitting it to be moved in the opposite direction. A spring 38 tends to hold the support at the limit of upward movement permitted by the screw 34. Connected to the bracket 22 is a rod 40 which is connected at its opposite end to a treadle 42 by means of which the work support. may be depressed in the operation of the machine, as will be subsequently explained.

On the upper portion of the frame are formed projections 44 and 46 which are rovided with bearings for a rotatable eed shaft 48 positioned at one side of and slightly higher than the cutter shaft and parallel thereto. This shaft is driven by means of bevel gearing 50 from an upright shaft 52 which 1s driven in turn by means of worm gearing 54 from the main'driving shaft 4. Loosely mounted upon the shaft 48 at one end is an arm 56, which may be formed as shown to provide an elongated gear casing, and carries at its other end a feed and gage wheel 58 mounted upon a short shaft 60. The wheel 58 is driven from the shaft 48 by means of a train of gearing 61 carried by the casing 56, and so arranged as to maintain the operative connection between the wheel and shaft for all positions of adjustment of the casing. Mounted loosely upon the shaft 48 on the opposite side of the projection 46 is an arm 62 which is adjustable to various radial positions about the shaft by means of a screw 64 in engagement with the frame. The casing 56 is formed with a slot 66 through which passes a clamping screw 68 threaded into a projection on the arm 62. The screw 68 serves to clamp the casing 56 and the arm 62 in fixed relation so that adjustment of the arm by means of the screw 64 serves to adjust the casing and vary the position of the wheel 58 with reference to the cutter.

The wheel 58, it will be noted, is located in front of and closely adjacent to the cutter wheel. and in order to gain access to the latter it is necessary that the feed wheel be moved aside. This is accomplished readily by loosening the screw 68, and swinging the casing about the shaft 48 independent y of the arm 62, an operation which is permitted by virtue of the slot 66 in the casing. Through the provision for movement of the casing 56 about the shaft 48, the wheel 58 is obviously swung in a plane parallel to the plane of the cutter 18. By this means the cutter wheel may be exposed to View, so as to permit its removal from the shaft if desired.

The wheel 58 is preferably milled u on its edge in order to assure a steady and e ective feed of the work and by the connectionshown it is rotated in a direction opposite to the direction of rotation of the cutter wheel and at a much lower rate of speed. It will be clear that this wheel acts not only as a means to feed the work but as a gage with reference to the cutter to determine the depth of the cut, the latter depending u on the position of the lower edge of the eed wheel with reference to the lower edge of the cutter. It will be clear also that the feed wheel may be adjusted, within the range of variation permitted by the machine, for cuts of different depths, without affecting its operation as a feeding member, since the work supporting member is to be so adjusted as to hold the work in contact with the wheel, through the operation of the spring 38, with sufficient pressure to assure an effective feed, and the location of the wheel with reference to the shaft 48 and its distance therefrom are such as to permit the necessary adjustment while maintainin the position of the wheel substantially in front of and closely adjacent to the cutter and in engagement with the work at apoint close to the point of operation of the cutter thereupon.

In the operation of the machine the position of the wheel 58is first adjusted by means of the screw 64 in accordance with the depth of the out which it is desired to make in the work and the support 26 is adjusted to determine the angle of the bevel. The screw 34 also is adjusted to determine the normal distance of the work support below the cutter, this adjustment depending upon the thickness of the work and upon the position of the feed wheel. The treadle 42 is then depressed and the blank, which may be a sole,

as 72, the heel seat of which is to be beveled at the edges, as indicated at 74 on Fig. 4, in accordance with my process previously referred to, is thrust in between the table and the cutter until it encounters the stop 70. The treadle is then released and the blank is forced by means of the spring 38 against the feed wheel, and is clamped between the ter and the rotary support member 28. The feed wheel then immediately advances the work in contact with the cutter. The operator turns the blank while keeping it in engagement with the stop member 70, and this and the feeding operation are both facilitated, as will be evident, by the rotalattion of the top 28 of the support in proportion to the rate of feed bf the work. It will be seen that the feed is accomplished entirely by automatic means and that all the operator has to do is. to guide the blank and to keep it in proper position, an operation which may be accomplished easily with one hand. The wheel 58 determines the depth of the cut and while in any given position keeps the latter constant whatever the thickness of the work may be. After the operation is completed the treadle is again depressed and the blank is removed.

It will be understood that my invention is not limited to the precise details of construction shown, since variations within the spirit and scope of the appended claims will be obvious to those skilled in the art to which the invention relates.

Having described my invention what I claim as new and desire to secure by Letters Patent of the United States is the follow 1ng:

1. In a machine of the class described, the combination with a rotary cutter and a work support, of a rotary feeding member for advancing the Work upon the support, said member being arranged with reference to the cutter to act as a gage for determining the depth of the cut and means for rotating said member in a direction opposite to the direction of rotation of the cutter and at a lower rate of surface speed.

2. In a machine of the class described, the

combination with a rotary cutter and a yielding work support, of driving means for the cutter, a rotary feeding member in front of the cutter for engaging and clamping the worlgupon the support, and means connected with the cutter driving means for driving said member to feed the work to the cutter, said member being arranged with reference to the cutter to act as a gage for determining the depth of the cut, and being adjustable-to permit cuts of different depths without disturbing its operative feeding relation to the work support.

3. In a machine of the class described, the combination with a rotary cutter and a work support, of driving means for the cutter, a rotary feeding member for advancing the work upon t e support, means connected with the cutter, driving means for continuously rotating the feeding member, said member being arranged with reference to the cutter to act as a gage for determining the depth of the cut, and means for adjusting said member to 7 permit cuts of diflerent depths without disturbing its operative relation to the driving means and to the work support.

4. In a beveling machine, the combination with a cutter, of a rotary work table pivoted to rotate about an axis inclined to the plane of the cutter, and a rotary feeding member for engaging the work and cooperating with the table to feed the work to the cutter, said 'member being arranged with reference to the cutter to act as a gage for determining the depth of the cut.

5. A machine of the class described having, in combination, a rota'ry shaft, a cutter mounted on the end of the shaft, asvork support, a feed wheel adjacent to the cutter for engaging and advancing the work upon the support, means to drive the feed wheel, anda movable support on which the feed wheel is mounted so arranged that said wheel may be swung aside in a plane substantially parallel to the plane of the cutter and in a direction away from the work support to afford access to the cutter.

6. A machine of the class described having, in combination, a rotary shaft, a cutter detachably mounted on the end of the shaft, a work support adjacent to the cutter, a feed wheel in front of the cutter for engaging and advancing the work upon the support, means to drive the feed wheel, and a movable support on which the feed wheel is mounted so arranged that said Wheel may be swung aside about an axis substantially parallel to the cutter shaft and in a direction away from the work support to permit the removal of the cutter from its shaft.

7. A machine of the class described having, in combination, a rotary shaft, a cutter mounted thereon, a work support below the cutter, a feed shaft at one side of the cutter shaft, a casing loosely mounted on the feed shaft and adjustable to difi'erent radial positions thereabout, a fwd wheel carried by said casing so as to be positioned normally in front of the cutter and closely adjacent thereto for advancing the work upon the support and determining the depth of the cut, and means operative in all positions of adjustment of the casing for driving the feed wheel'from the feed shaft, said feed wheel being radially projected from the feed shaft a sufficient distance to permit its adjustment with reference to the cutter to vary the depth of the cut without disturbing its position substantially in front of the cutter and its operative feeding relation to the work support.

8. A machine of the clas described having, in combination, a rotary shaft, a cutter mounted thereon, a work support below the cutter, a feed shaft at one side of the cutter shaft, an elongated casing loosely mounted at one and upon the feed shaft and adjust-"Q able to different radial positions thereabout, a feed wheel carried by the casing at,,.its other end and normally positioned in front of the cutter and closely adjacent thereto for advancing th a work upon the support and determining t c depth of the cut, and a train of caring carried by the casing and connecting the feed shaft and the feed wheel, said gearing being arranged to maintain the operative connection between said shaft and wheel for all positions of adjustment of the casing.

9. A machine of the class described having, in combination, a frame, a rotary cutter shaft mounted therein, a cutter detachably mounted on the end of said shaft, a work support adjacent to the cutter, a feed shaft at one side of the cutter shaft, a casing loosely mounted on the feed shaft and adjustable thereabout, a fetal wheel carried by said casing and normally positioned in front of the cutter for advancing the work upon the support and determining the depth of the cut, gearing carried by the casing and connecting the feed shaft with the feed wheel, an arm loosely mounted upon the feed shaft, means in engagement with the frame for fixing said arm in different radial positions with reference to said feed shaft, and a connection between the arm and said casing, whereby ad ustment of the arm serves to adjust and position the feed and gage Wheel with reference to the cutter.

10. A machine of the class described having, in combination, a frame, a rotary cuther shaft mounted therein, a cutter detachably mounted on the end of said shaft, a work support adjacent to the cutter, a feed shaft at one side of the cutter shaft, a casing loosely mounted on the feed shaft and adjustable thereabout, a feedwheel carried by said casing and normally positioned in front of the cutter for advancing the work upon the support and determining the depth of the out, gearing carried by the casing and connecting the feed shaft with the feed wheel, an arm loosely mounted upon the feed shaft, means in engagement with the frame for fixing said arm in different radial positions with reference to said feed shaft, and means to clamp the arm to said casing whereby adjustment of the arm serves to adjust and position the feed and gage wheel with reference to the cutter, said means including a screw and slot connection whereby the casing and feed wheel may be swung about the feed shaft independently of said arm so as to permit removal of the cutter from the cutter shaft.

11. In a machine of the class described, the combination with a rotary cutter and a work support, of a rotary feeding member arranged to engage and clamp the work upon the support at a point close to the point of operation of the cutter upon the work, and means for rotating said member in a direction opposite to the direction of rotation of the cutter and at a lower rate of surface speed, said member being arranged also with reference to the cutter to act as a gage for determining the depth of the cut and being adjustable to permit cuts of different depths without disturbing its operative clamping and feeding position close to the point of operation of the cutter upon the work.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ADAM H. PRENZEL. Witnesses:

S. W. RYAN, G. W. Snovrz.

Corrections in Letters Patent No. 1,128,359.

It is hereby certified that in Letters Patent Nu. 1,128,359, granted February 16,

1915, upon the application of Adam ll. lrenzel, of Halifax, Pennsylvania, for an improvement in B0veling-Machinos" errors appear in the printed spvr-ificatien requiring correction as follows: Page 3, line 63, claim 4, before the word "(:utter insert the word rotary; same page, same line, before the wnrd work sllllit out the wurd retail-3"; and that the said Letters Patent should he read with these corrections therein that the same may runlurm to the record of the rage in the Patent Office.

Signed and sealed this 7th day of September, A. l)., 191.").

Acting Commissioner of Patents. 

